Populated IrDA?

joerg joerg.twinklephone at gmx.de
Thu Feb 28 19:53:33 CET 2008

Am Do  28. Februar 2008 schrieb Alan Ide:
> [...] Could someone please let me know
> if it is or is not populated / usable?? I really want to be able to use my
> FreeRunner as my universal remote using LIRC. 
Though i think there's no way to have an IrDA inside GTA01 (OT, i know) for 
there's no specs for any IR-window in the case.
Maybe related(also GTA01, no schematics;-( for 02): what's the use of TX-IRDA, 
RX-IRDA on 1. & 2. ring of headset connector(3,4), ending on GSM-module pins 
of same name, enabled by pulling 3. ring to GND (4.ring, base)? How is this 
supposed to be used? In case of an external IR-adapter: where to take TX-LED 
power from? I suppose mic bias (2k2) won't suffice.
Near OT: what's "Hold" on 3. ring of same connector supposed to signal to CPU? 
RC (A/D - R-cascade. in case: supposed R-values?)?
An application sample for full featured external (RC-)headset / other 
(IR-)device(s) might help!

completely OT: ambient light sensor? (PCU is supposed to support...)


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